Pipe hanger



March 22, 1932. L. R. ZIFFERER PIPE HANGER 7 Filed May 12, 1928 2Sheets-Sheet 1 f/ZME: 7 x607:

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Patented Mar. 22,. .1932

UNITED PA E T oFFIcE; I

orrmn R. zrrrnana, or COLU IA, PENNSYLVANIA; MABEL o. zrrrnnnn, HARRY.

n. oHAMPro v, am) n zrrrn'a'na, DEC ASED, ASSIGNORS '10 COLUMBIAMALLEAIBLE ons'r'mss coerc TION, onoorunris rgr nivnsxtvnnrmnooRroRA'rIon' on NEW YORK ivnLsoiv. ALBRIGHT', EXEOUToR-s or. sAInLOTHAR 7R.

' PIrE H ANGER' Application filed May 12,

This invention relates to afpipe hanger which is adjustable upon adepending overhead support. It comprises a ringhavinga swiveled mountingupon a sleeve, these two .5 parts'being inseparably joined. The presentinvention is directed more particularly to .the connection between thesleeve and the ring by which these parts tend to remain inarelativelyfixed rotative position,although free 1y rotatable after the one hasbeenshifted longitudinally upon'the other. It is practicable to embodytheinvention inany one of a number of 'diiferent forms, several of whichare illustrated in the accompanying drawings, in the manner following:

Figure 1' 's a view in elevation of th hanger in its entirety, a pipe-,shown intransverse section, being supported therein Fig. 2 is a verticalsection through the hanger shown in Figure 1; I i

Fig. 3 is a transverse section taken on line 33 of-Figure 2; x

Fig. 4 which is a view similar to Figure 2, shows the parts moved to aposition wherein one may be adjusted rotatively to the other;

Fig. 5 is a view similar to Figure 2 show- 1 ing a sleeve base having acontour which is. elliptical in cross section; y

Fig. 6 is a transverse section therethrough 8, online 66 of Figure 5. a:a

Fig. is a .view partly in elevation .and partly in section showingtheinvention further modified to provide a sleeve base for hexagonalcon-tour;

1 Fig. 8 is a transverse section therethrough taken on line 88 of Figure7 Fig. 9 which is a view partly in elevation and partly in section,showsa' further modification of the invention, the base of the sleeve inthis instance being conical with ribs extended radially therefrom;

Fig.:10 is a detail in elevation of the ring collar which is formed tooo-operate with a sleeve having the construction shown in Figure 9;and wI Fig. his a transverse section taken on line 1111 of Figure 9. Y j

The pipe hanger ;of this. invention comprises a ring A having'a swiveledconnection with alsleeve B the internal-threads of lower stop for thering collar.

192s.- I Serial No. 277,150.

which cooperate with a depending bolt or rod C having an overheadfastening. By rotating the sleeve the hanger may be adjusted verticallyupon the bolt. Adeviceof this character is adapted to support a pipe Dwhich is receivable within the ring A, as shown. 1

The sleeve is provided by preference with a polygonal head 12 affordinga convenient wrench hold. It may also have'one or more ,0 transverseapertures 13 affording a view of the supportin bolt C which is threadedtherewithin'. flange 14 which extends circumferentially of the sleeveprovides an upper stop for a collar 15 which upstands from the ringcomponent A- At the lower end of the sleeve is an enlarged base 16providing a In the construction'shown in Figures 1 to 4, inclusive, thesleeve base tapers outwardly and co-operateswith a like tapering surface17 formed interiorly of the collar 15, the ar-:- rangement, being suchthat the ring of the. hanger normally occupies the down position shownin Figure 2. Then the hanger is sup-. porting a load, the vertical forceexerted thereby is sufiicient to. producea wedge'action between therespectively engaging tapering surfaces, suchthat the sleeve is lockedfrictionally .againstrotation relative to the associated parts. Byrelieving the hanger of its load or. optionally by lifting the ringcomponent slightly, as shown in Figure 4, this friction lock'between thesleeve and col larmay be released,permitting the sleevein suchcircumstances to lee-adjusted freely to a selected vertical positionupon the supporting bolt. In any such movement of the ring the flange 14serves as an upper stop,and due to the fact that this flange overliesthe upper end of thecollar it co-operates'with the sleeve base toprevent disassembly of the ring and sleeve under all conditions. 1

A very similar construction is set forth in Figures 5 and 6 wherein theonly difference is in'the cross sectional contour of the-tapering baseofthe sleeve and the corresponding tapering contour of the ring collar.The sleeve in the region of its base 26 is of elliptical cross section,and the contourof the ring 001- W struction is to render the lockbetween the sleeve and ring positive rather than merely frictlonal.

A further modlfication of thls invention is suggested in Figures 7 and 8wherein the tapering base 36 of the sleeve is of hexagonal contour withthe co-operating surfaces of the ring collar 35 similarly configured.With such a construction the ring may be locked positively relative tothe sleeve in anyone of six rotative positions situated 60 apart.

In Figures 9, 10 and 11, I have suggested a further modification of theinvention. The tapering base 46 of the sleeve is here provided with oneor more ribs 47 preferably tapered outwardly to a greater angle, asshown. Each of these ribs at its upper end may be merged into thesurface of the sleeve base. The ring collar 45 which is designed forcooperation with the sleeve so formed, is provided with a surface havinga taper corresponding generally to that of the sleeve base, and isfurther formed with one or more slots 48 into which the outstanding ribsmay enter. IVitha construction having four such ribs as suggested in thedrawings, it is possible for the ring to be locked positively withthesleeve inany one of .four positions situated 90 apart.

A pipe hanger formed according to any of the embodimentshereinillustrated maybe conveniently cast in metal, the sleeve being producedfirst and then serving as a core for the moulding of the ring collarwhich is produced' in a second operation. By proceeding in this manner,I attain a perfect register between the co operating surfaces of thesleeve base and the ring collar, regardless of the cross sectionalcontours thereof. The advantages of such a construction reside largelyin the fact that the hanger may be produced uniformly with economy,behandled always as a unit article, and be installed and adjusted with aminimum of effortand time. In use the sleeve is rotated to a selectedposition of adjustment on the supporting bolt, following which theweight of the hanger and its load acts frictionally or 'positivelytolock the sleeve against further movement, and the ensuing wedge actionserves additionally to oppose relative longitudinal movement of thesleeve and collar which can take place only by the application ofa'force which is sufficient to break the wedge lock described.

I claim:

1. A pipe hanger in which is comprised a therewith when the collar is inan extreme downward position whereby a wedge force is exerted tofrictionally lock-the one part against rotation relative to the other,the

stop on the sleeve overlying the upper end of the collar and beingspaced therefrom a distance sufiicientto permit a limited upwardmovement of the ring upon the sleeve whereby to release the lock betweenthe ring and the sleeve.

2. In a pipe hanger, the combination of a ring having a collar theinterior of which is tapered, a sleeve extended through the collarhaving a tapered base with which the corresponding collar surface isadapted to engage frictionally when the ring is disposed adjacent to thelower endof the sleeve base, and a stop projecting laterally from thesleeve at a point above the upper end of the collar when the latter isin its down position, the stop being adapted to limit the upwardmovement of the collarwhen the one part is shifted longitudinally uponthe other.

3. In a pipe hanger, the combination of a ring having a collar, a sleeveextending throughthe collar and having spaced means between which thering is shiftable longitudinally thereupon, one of said means beingtapered and co-operating with a correspondingly tapered surfaceinteriorly of the collar for preventing separation of the collar fromthe sleeve when the parts are shifted longitudinally in one direction,and adapted to lock with an increasing friction in response to anincrease in the vertical force exerted by a load which is suspended inthe ring, the other of said spaced means engaging with the collar whenthe latter is shifted relative to thesleeve in the opposite direction.

ll In a pipe hanger, the combination of a collar from which depends apipe support, a sleeve adapted for threaded connection with an overheadsupport extending through the collar, means projecting from the sleeveabove the collar for limiting endwise movement of the latter thereuponin one direction, the lower sleeve end having an outwardly taperingsurface and the collarinterior being similarly tapered for engagementtherewith with a wedge action when the collar is shifted endwise uponthe sleeve to an extreme down position, the means projecting from thesleeve above the collar permitting a limited longitudinal movement ofthe latter.

5. In a pipe hanger, the combination'ofa pipe support depending from acollar having an elongated tapering interior surface, and a sleeveadapted for threaded connection with an overhead support extendingthrough the collar, the sleeve having an elongated tapering baseterminating adjacent the collar bottom, and with which the surroundingcollar surface is adapted to engage frictionally when the ring isdisposed adjacent the lower end of the sleeve base whereby a variablewedge force is exerted to lock the one part against rotation relative tothe other.

6. In a pipe hanger, thecombination of a pipe support depending from acollar having an elongated tapering interior surface, and

a sleeve adapted for threaded connection with an overhead supportextending through the collar, the sleeve having an elongated taperingbase terminating adjacent thefcollar bottom, and a peripheral contourconforming to that of the tapered interior surface of the collar withwhich the sleeve base is adaptedto engage frictionally when the ringisdisposed adjacent the lower end of the sleeve base whereby a variablewedge force is exerted to lock the one part against rotation'relative tothe other.

7. In a pipe hanger, the combination of a collar from which depends apipe support, and a sleeve adapted for adjustable connection with anoverhead support extending through the collar, the sleeve having a tapered base with which the surrounding collar surface is adapted toengage frictionally when the ring is disposed adjacent the lower end ofthe sleeve base, whereby a variable wedge force is exerted to resistrelative rotation between these parts, the engaged tapering surfacesbeing also formed with complementary eccentric means by which to furtheroppose such relative rotation.

LOTHAR R. ZI'FFERER.

